I have ridden this shuttle multiple times so I have a good feel for how the organization works. I'm not one to complain as long as you get me from point a to point b but this shuttle service has the most difficult time with that. Tucson-university location is a local gas station with the tiniest door saying AZ Shuttle but the door is always barred shut and I've never seen anyone go in or out --- it's always locked. The shuttles are always packed to the core. I am about 5'9 and my knees have to be quite scrunched up to fit. Also, you will almost always be sitting with some stranger basically on your lap. Additionally, the likelihood of them arriving on time to pick you up and dropping you off is slim to none. It's always late --- sometimes it is even late by an hour or more. On this particular trip, seven passengers and I have been blessed with a vehicle with no air conditioning. No waters have been offered and we are all roasting as I type. Throughout the typing of this yelp review, the vehicle has slammed down on the breaks twice to the point where all of our bodies have flown forward and we continue to swerve through the straight shot of that is the highway. I'm not one to get car sick but this may be my day. Avoid this shuttle at all costs.